The culprit (罪魁祸首) was believed to be a piece of space junk (太空垃圾). While thankfully no astronauts were injured, it has refocused attention on the growing problem of orbital debris(残骸). It’s easy to forget that just seven decades ago the Moon was the only thing orbiting the...
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Now astronomer James Head’’s higher-resolution models demonstrate that collisions making craters only three kilometers across can jettison 10 million fragments, each about 10 centimeters across, into space, a distribution sufficient to cause some of them to be found on Earth. Sections of the ...
The lunar maria are impact basins created by collisions with cosmic debris that filled with lava and other lunar material between 1-4 billion years ago. A mosaic image of the Moon captured by the Galileo spacecraft, showing colour on the lunar surface. On the upper left is Mare Imbrium; mi...
* "Surprisingly Orderly" Star Clusters in Spiral Galaxies: The Big Bang model predicted that the bulge of stars in the center of spiral galaxies resulted from millions of years of collisions. But about the perfect orderliness of those stars, as reported in the New Scientist article, Galaxies ...
more high-speed collisions (碰撞). And when chunks of junk crash into one another, they break apart into millions of pieces, quickly building up speed and turning into fast-moving objects, which are dangerous to operational satellites as well as astronauts working on the International Space ...
A visible-light image of a debris disk around the red dwarf star AU Microscopii. Planets may be forming, or might already exist, within it. The disk glows in starlight reflected by tiny grains of dust created by the collisions of asteroids and comets. Because it is composed of the pulver...
Players are given a roster of vehicles to operate in comical physics-driven levels where the goal is to rack up as many points as you can by setting up various collisions in the environment. There’s a replay system for keeping track of your highlight reel along with level editing and an...
The lunar maria are impact basins created by collisions with cosmic debris that filled with lava and other lunar material between 1-4 billion years ago. A mosaic image of the Moon captured by the Galileo spacecraft, showing colour on the lunar surface. On the upper left is Mare Imbrium; mi...